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Long In Development, Toshiba 'SCiB' Battery Debuts
relliker notes Toshiba's announcement of the SCiB, a battery we have been following for years. (As usual, use NoScript to avoid the incredibly annoying timed begging popup on Gizmag's site.) Here is Toshiba's SCiB site. The battery's specs claim 6,000+ charge/deep-discharge cycles with minor capacity loss, safe rapid charging to 90% in 5 minutes, and enhanced safety regarding overheating or shorting out. It could make its way into electric vehicles before long.
SCIB = Super Charge Ion Battery
http://en.wikipedia.org/wiki/Lithium-titanate_battery
Toyota? Or Toshiba?
Toshiba, as in TFA. The title is just wishful thinking to get this in the Prius.
Seriously, one of the main issues (other than price) keeping people from buying electric or hybrid vehicles is the time it takes to recharge, which doesn't make them a viable option for long (read: hundreds of kilometres in one go) trips.
My original post's title did not have the company name in it :)
A 2kg battery pack is 24V for 4.2Ah. That's ~100wh
To match the Chevy Volt's 16Kwh You'd need around 160 of these. That's for a tiny 40mile range. These aren't going to be the main power source of a car any time soon
You confused power density and energy density. A cap may be 1000-10000 w/kg but that's energy density. It looks like these things are like caps in the sense that they can charge/discharge FAST compared to everything else. How much energy you get from it is a different matter.
A 9V battery is the same energy as several rounds of 9mm pistol shots, but it should be immediately obvious that 9V batteries aren't able to dump that energy as FAST as a 9mm...
Sorry, only works till -30 Celsius. So it may be a problem in countries that experience a real winter.
Excuse me, but please get off my Pennisetum Clandestinum, eh!
The problem isn't the battery technology, it's the fact that laptop batteries are pretty much put through hell. Complete charge-discharge cycles (Tesla doesn't charge the battery above 85% or allow it to go below 10%), and they have no form of cooling (Tesla uses the vehicle's air conditioning system to keep the batteries at a nice temperature).
Do all that, and the battery will last much longer. But that's generally not practical for a laptop. Allowing room for cooling will result in either a bigger battery pack or less capacity, as will limiting the charge band.
upon the advice of my lawyer, i have no sig at this time
No the 1000-10000 w/kg is power density. Energy density would be W-h / kg. Power density is W/kg. See:
http://en.wikipedia.org/wiki/File:Supercapacitors_chart.svg
Why OpalCalc is the best Windows calc
say a car would need 30kw to maintain motorway speed (say 50, for ease of calculation), and ranges 200 miles, that means you need 120 KW/h of stored energy, pack 90% of that in five minutes, and you end up with roughly 1.3 Gigawatt of drain sustained over 5 minutes...
IT'S OVER 1.21 GIGAWAT!! (yeah i know, i got my meme's mixed)
That would be 30 kW (not kw), 120 kWh (not KW/h), 1.3 MW (not GW) ;-)
So no, it's not over 1.21 gigawatt, just a factor 997 lower...